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Finding the Fourth Proportional to 111,595.92, 168,053.82 and 80,647.44

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Solution

The fourth proportional to 111,595.92, 168,053.82 and 80,647.44 is: 121,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,595.92 : 168,053.82 = 80,647.44 : x
  2. Step 2: Convert to fraction form
    111,595.92/168,053.82 = 80,647.44/x
  3. Step 3: Cross multiply
    111,595.92x = 168,053.82 × 80,647.44
  4. Step 4: Simplify right side
    111,595.92x = 13,553,110,365.22
  5. Step 5: Solve for x
    x = 13,553,110,365.22/111,595.92
  6. Step 6: Final answer
    x = 121,448.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.